libstdc++: Regenerate baseline_symbols.txt files for Linux
The following patch regenerates the ABI files for 13 branch (I've only changed
the Linux files which were updated in r13-7289, all but m68k, riscv64 and
powerpc64 are from actual Fedora 39 gcc builds, the rest hand edited).
We've added one symbol very early in the 13.2 cycle, but then added 2
further ones very soon afterwards, quite a long time before 13.2 release
and haven't regenerated. The patch applies cleanly to trunk as well.